HQ Prop's 3x15mm Aluminum Standoffs are a great choice for your custom drone projects. Use these female/female standoffs to mount your flight control or power distribution boards, or as upper/lower deck spacers. These Aluminum Standoffs are designed for M3 hardware, and are available in lengths from 10mm to 50mm to suit almost any application. Plus, you can choose from a black, blue or red finish and add a custom touch to your machine.